National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

NOAA / NWS News and Local CNRFC Information

CNRFC Daily Briefing - View a graphical summary of current & forecast weather & hydrologic conditions. Updated by 10 AM PT.

2021 Tide Tables Available - The 2021 tide tables are now available on our river forecast page.

Alert MessageAt Least One River Guidance (Flood Forecast) Point Is Currently or Forecast to Exceed Monitor StageAlert Message

 
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The number inside each circle above represents the number of gages with observed conditions inside that category.
The number inside each circle above represents the number of gages with forecast conditions inside that category.
The number inside each circle above/below represents the number of gages with conditions inside that category.
Forecast
(large dots)
The number inside each circle above represents the number of gages with observed conditions inside that category.
The number inside each circle above represents the number of gages with forecast conditions inside that category.
The number inside each circle above/below represents the number of gages with conditions inside that category.
Observed
(small dots)



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Rivers/Reservoirs

Deterministic Forecasts 

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Ensemble Forecasts
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Peak Exceedance Probabilities*
Data updated:
10%25%50%75%90%
5-Day Peak
10-Day Peak
*Exceedance probabilities are only available for selected forecast points.

Observed Data
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Latest Hour 1 Hr Ago 2 Hrs Ago 3 Hrs Ago
Forecast Points
Other Points
Reservoirs

Deterministic Forecast + Observed Data
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Forecast Points 
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Significant River Flood Outlook
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Valid:

      National Significant River Flood Outlook

Water Resources

Data updated (unless otherwise noted):


 

 








Monthly Archive
Month/Year:     

Reservoir Storage
(Data to 1925 for all reservoirs/1951 for "major")
% Normal % Capacity

Snow Data

National Gridded Data



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Point Data
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SWE
SWE Change



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Snow Depth
Snow Depth Change

Daily Archive (Data back to Apr 2014)
M/D/Y:     
    % Avg % Apr 1
Avg
Value
Simulated
Basin
Avg
Mid-Upper
Lower

Monthly Archive (Data back to Jan 1998)
Month/Year:     
  % Avg Value
Point*
* Jan-Jun only prior to 2019.

Observed Precipitation (QPE)

Radar Data
 
 


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Short-Range Point Data

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6-Hour Totals (QC'd = Quality-Controlled)
Ending 18Z (11 AM PDT) Ending 00Z (5 PM PDT) Ending 06Z (11 PM PDT) Ending 12Z (5 AM PDT)
 
 
 
 
24-Hour Totals (QC'd = Quality-Controlled)



Short-Range Gridded Data
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Monthly/Water Year Archive (starts Oct 1996)
Month/Year:     
Note: The water year starts on October 1 of the previous reference year and ends on September 30 of the reference year. For example, the 2020 Water Year began on October 1, 2019 and ended on September 30, 2020.
    % Avg Value Departure Normal
Point Monthly
   
WY
   
Grid Monthly
WY
Basin
Avg
Monthly
     
WY
     
Forecast
Group
WY
     


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Forecast Precipitation (QPF)

CNRFC Forecast Data
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WPC Forecast Data
Day 1 issued:
Day 2 issued:
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Days 1-3 issued:
Days 1-7 issued:
WPC 6-Hourly QPF
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WPC 24-Hourly QPF
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WPC 72-Hourly QPF

WPC 7-Day QPF

Observed Temperatures

Point Data
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Instantaneous Temperatures
Temp Change:
Max/Min Temperatures
24-Hour Max
Ending 12Z
(5 AM PDT)
24-Hour Min
Ending 12Z
(5 AM PDT)
Daytime
Max *
Overnight
Min **
* Updated: 10 PM   **Updated: 10 AM  

Gridded Data
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Forecast Temperatures

Basin Temperature Plots
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Forecast Temperature Grids
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Freezing Levels

Observed Freezing Levels
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Forecast Freezing Levels
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Flash Flood Guidance/Debris Flow

Flash Flood Guidance Grids
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Post-Wildfire Debris-Flow Basin Probability
Debris Flow Probability (peak 15-min rainfall intensity of 24 mm/hr)

More info: USGS post-wildfire debris-flow hazards

Water Temperatures

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Climate/Drought

U.S. Drought Monitor

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Climate Prediction Center Outlooks
Drought Outlooks
Extended Range Outlooks
Precipitation
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Long Lead Outlook
Precipitation
Temperatures

QPF Verification

24-Hour QPF Verification Grids
Images created:
Date: (ending 4am PST / 5am PDT) Select forecast to verify:
Day 1 forecast created Sun Oct 24, 2021


    QPE    
QPF

Watches/Warnings/Advisories

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Mid-Atlantic RFCOhio RFCNortheast RFCNorth-Central RFCMissouri Basin RFCLower Mississippi RFCWest Gulf RFCArkansas-Red Basin RFCSoutheast RFCNorthwest RFCColorado Basin RFCCalifornia-Nevada RFCAlaska-Pacific RFCMap showing all 13 RFCs
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River Guidance Points Forecast Above Specified Stage Definitions  (Select NWS ID for Specified Graphical RVF)
NWS IDRiver / CreekGage / StationMonitor
Stage
Flood
Stage
Danger
Stage
Max Forecast
Stage
Max Forecast
Flow
Forecast
Status
CLAC1SACRAMENTO COLUSA WEIR 60.970.171.162.0147Above Monitor
TISC1SACRAMENTO TISDALE WEIR 44.151.652.646.17,704Above Monitor
RVBC1SACRAMENTO RIO VISTA 7.411.912.97.5Above Monitor
MHBC1COSUMNES MICHIGAN BAR 7.012.08.26,930Above Monitor
MCNC1COSUMNES MCCONNELL 40.046.043.0Above Monitor
THTC1MOKELUMNE BENSON'S FERRY 12.017.015.0Above Monitor

** NOTE **  Stage is presented in "Feet" while Flow is presented in "cfs".

River Guidance Forecast Group Issuance and Next Update Times  (Select Forecast Group for Specified Text RVF)
FG IDForecast GroupIssuance TimeNext Update Time
SENorth Coast[ Alternate Link ]Oct 25 2021 at 2:11 PM PDTOct 26 2021 at 9:00 AM PDT
RNRussian Napa[ Alternate Link ]Oct 25 2021 at 2:32 PM PDTOct 26 2021 at 9:00 AM PDT
USAUpper Sacramento[ Alternate Link ]Oct 25 2021 at 2:07 PM PDTOct 26 2021 at 9:00 AM PDT
LSCLower Sacramento[ Alternate Link ]Oct 25 2021 at 2:15 PM PDTOct 26 2021 at 9:00 AM PDT
SJSan Joaquin[ Alternate Link ]Oct 25 2021 at 2:39 PM PDTOct 26 2021 at 9:00 AM PDT
CCCentral Coast[ Alternate Link ]Oct 25 2021 at 2:48 PM PDTOct 26 2021 at 9:00 AM PDT
SCASouthern California[ Alternate Link ]Oct 25 2021 at 8:42 AM PDTOct 26 2021 at 9:00 AM PDT
ESEastern Sierra[ Alternate Link ]Oct 25 2021 at 2:48 PM PDTOct 26 2021 at 9:00 AM PDT
HBTHumboldt[ Alternate Link ]Oct 25 2021 at 8:07 AM PDTOct 26 2021 at 9:00 AM PDT
SAC Sacramento Delta (Tides) [ Alternate Link ]Oct 25 2021 at 1:09 PM PDTOct 26 2021 at 9:00 AM PDT
 
** NOTE 1 **  The Klamath and North Coast river guidance points are included in the North Coast Forecast Group.
** NOTE 2 **  The Feather Yuba and American river guidance points are included in the Lower Sacramento River Forecast Group.
** NOTE 3 **  The Delta Region, Upper and Lower San Joaquin river guidance points are combined in the San Joaquin River Forecast Group.

CNRFC Daily Briefing
Observed Precipitation Graphical Discussion Forecast Precipitation
** Note ** Click on Indvidual Images to Expand.